نتایج جستجو برای: y polymorphisms
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It has been proposed that women had a higher migration rate than men throughout human evolutionary history. However, in a recent study of South American natives using mtDNA restriction fragment polymorphisms and Y-chromosome microsatellites we failed to detect a significant difference in estimates of migration rates between the sexes. As the high mutation rate of microsatellites might affect es...
To further explore Y-STR INRA189 polymorphisms in the yak, and to determine the genetic differences among yak breeds, genotyping analysis of INRA189 in 102 male yak individuals from three yak breeds in Qinghai Province of China was performed. Genotyping revealed the presence of four alleles, with sizes of 149, 155, 157, and 159 bp, respectively. Of these, the 157-bp allele, which was found with...
Neuropeptide Y (NPY) is a strong candidate gene for coronary artery disease (CAD). We have previously identified genetic linkage to familial CAD in the genomic region of NPY. We performed follow-up genetic, biostatistical, and functional analysis of NPY in early-onset CAD. In familial CAD (GENECARD, N = 420 families), we found increased microsatellite linkage to chromosome 7p14 (OSA LOD = 4.2, ...
Analysis of Y chromosome haplogroups, defined by single nucleotide polymorphisms (SNPs), is now a standard approach for study of the origin of human populations and measurement of the variability among them. It is also a new forensic tool, because it may allow determination of the origin of any male sample of interest. We have used a strategy for rapid, simple and inexpensive Y chromosome SNP t...
background: approximately 10-14% of the clinically acknowledged pregnancies end with spontaneous abortion at caucasian population. possible immunologic causes of recurrent miscarriages have been extensively researched. the change in the cytokines balance synthesis in favor of those synthesized by th2 cells with an increase of interleukin 6 (il6) and interleukin10 (il10) secretion is considered ...
The aim of this review is to summarize the existing data collected in high-resolution phylogenetic studies of mitochondrial DNA and Y chromosome variation in mainland and insular Croatian populations. Mitochondrial DNA polymorphisms were explored in 721 individuals by sequencing mtDNA HVS-1 region and screening a selection of 24 restriction fragment length polymorphisms (RFLPs), diagnostic for ...
Reconstruction of phylogenetic relationships among recently diverged species is complicated by three general problems: segregation of polymorphisms that pre-date species divergence, gene flow during and after speciation, and intra-locus recombination. In light of these difficulties, the Y chromosome offers several important advantages over other genomic regions as a source of phylogenetic infor...
40 Andreassen H, Rungby J, Dahlerup JF et al. (1997) Inflammatory bowel disease and osteoporosis. Scand J Gastroenterol 32, 1247–1255. 41 Vogel A, Strassburg CP, Manns MP (2002) Genetic association of vitamin D receptor polymorphisms with primary biliary cirrhosis and autoimmune hepatitis. Hepatology 35, 126–131. 42 Fan L, Tu X, Zhu Y et al. (2005) Genetic association of vitamin D receptor poly...
The ribosomal DNA (rDNA) arrays are causal agents in X-Y chromosome pairing in meiosis I of Drosophila males. Despite broad variation in X-linked and Y-linked rDNA copy number, polymorphisms in regulatory/spacer sequences between rRNA genes, and variance in copy number of interrupting R1 and R2 retrotransposable elements, there is little evidence that different rDNA arrays affect pairing effica...
Background: Estrogen is recognized as one of the significant regulator of spermatogenesis. Estrogens are synthesized in the male reproductive system (sertoli and leydig cells). Estrogen function is mediated by estrogen receptors (ER-α or ER-β). Some studies have suggested an association between single nucleotide polymorphisms (SNPs) rs2234693 (ESR1 pvuII C>T), rs1801132 (ESR1 325 C->G) of ERα g...
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